They are available in single sided, small capacity to four sided, wall mounted table models. They can be used in nearly any kitchen area, from the busy commercial kitchen to the private home. Other areas where these small plate racks could be a giant helper would be in the bar, boat, camper, recreational vehicle, or ships galley. Hardware for attaching the units are included. You can attach them permanently to the wall ore you can detach the larger model and use them at the table, buffet, or bar. The units can be cleaned with warm soapy water; or in the case of smaller units; can be cleaned in the dishwasher.